/****************************************************************************
 *
 * Copyright 2016 Samsung Electronics All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 *
 ****************************************************************************/

/**
 * \file md_wrap.c
 *
 * \brief Generic message digest wrapper for mbed TLS
 *
 * \author Adriaan de Jong <dejong@fox-it.com>
 *
 *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
 *  SPDX-License-Identifier: Apache-2.0
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
 *  not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  This file is part of mbed TLS (https://tls.mbed.org)
 */

#include "tls/config.h"

#if defined(MBEDTLS_MD_C)

#include "tls/md_internal.h"

#if defined(MBEDTLS_MD2_C)
#include "tls/md2.h"
#endif

#if defined(MBEDTLS_MD4_C)
#include "tls/md4.h"
#endif

#if defined(MBEDTLS_MD5_C)
#include "tls/md5.h"
#endif

#if defined(MBEDTLS_RIPEMD160_C)
#include "tls/ripemd160.h"
#endif

#if defined(MBEDTLS_SHA1_C)
#include "tls/sha1.h"
#endif

#if defined(MBEDTLS_SHA256_C)
#include "tls/sha256.h"
#endif

#if defined(MBEDTLS_SHA512_C)
#include "tls/sha512.h"
#endif

#if defined(MBEDTLS_PLATFORM_C)
#include "tls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc    calloc
#define mbedtls_free       free
#endif

#if defined(MBEDTLS_MD2_C)

static void md2_starts_wrap(void *ctx)
{
	mbedtls_md2_starts((mbedtls_md2_context *) ctx);
}

static void md2_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_md2_update((mbedtls_md2_context *) ctx, input, ilen);
}

static void md2_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_md2_finish((mbedtls_md2_context *) ctx, output);
}

static void *md2_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_md2_context));

	if (ctx != NULL) {
		mbedtls_md2_init((mbedtls_md2_context *) ctx);
	}

	return (ctx);
}

static void md2_ctx_free(void *ctx)
{
	mbedtls_md2_free((mbedtls_md2_context *) ctx);
	mbedtls_free(ctx);
}

static void md2_clone_wrap(void *dst, const void *src)
{
	mbedtls_md2_clone((mbedtls_md2_context *) dst, (const mbedtls_md2_context *)src);
}

static void md2_process_wrap(void *ctx, const unsigned char *data)
{
	((void)data);

	mbedtls_md2_process((mbedtls_md2_context *) ctx);
}

const mbedtls_md_info_t mbedtls_md2_info = {
	MBEDTLS_MD_MD2,
	"MD2",
	16,
	16,
	md2_starts_wrap,
	md2_update_wrap,
	md2_finish_wrap,
	mbedtls_md2,
	md2_ctx_alloc,
	md2_ctx_free,
	md2_clone_wrap,
	md2_process_wrap,
};

#endif							/* MBEDTLS_MD2_C */

#if defined(MBEDTLS_MD4_C)

static void md4_starts_wrap(void *ctx)
{
	mbedtls_md4_starts((mbedtls_md4_context *) ctx);
}

static void md4_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_md4_update((mbedtls_md4_context *) ctx, input, ilen);
}

static void md4_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_md4_finish((mbedtls_md4_context *) ctx, output);
}

static void *md4_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_md4_context));

	if (ctx != NULL) {
		mbedtls_md4_init((mbedtls_md4_context *) ctx);
	}

	return (ctx);
}

static void md4_ctx_free(void *ctx)
{
	mbedtls_md4_free((mbedtls_md4_context *) ctx);
	mbedtls_free(ctx);
}

static void md4_clone_wrap(void *dst, const void *src)
{
	mbedtls_md4_clone((mbedtls_md4_context *) dst, (const mbedtls_md4_context *)src);
}

static void md4_process_wrap(void *ctx, const unsigned char *data)
{
	mbedtls_md4_process((mbedtls_md4_context *) ctx, data);
}

const mbedtls_md_info_t mbedtls_md4_info = {
	MBEDTLS_MD_MD4,
	"MD4",
	16,
	64,
	md4_starts_wrap,
	md4_update_wrap,
	md4_finish_wrap,
	mbedtls_md4,
	md4_ctx_alloc,
	md4_ctx_free,
	md4_clone_wrap,
	md4_process_wrap,
};

#endif							/* MBEDTLS_MD4_C */

#if defined(MBEDTLS_MD5_C)

static void md5_starts_wrap(void *ctx)
{
	mbedtls_md5_starts((mbedtls_md5_context *) ctx);
}

static void md5_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_md5_update((mbedtls_md5_context *) ctx, input, ilen);
}

static void md5_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_md5_finish((mbedtls_md5_context *) ctx, output);
}

static void *md5_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_md5_context));

	if (ctx != NULL) {
		mbedtls_md5_init((mbedtls_md5_context *) ctx);
	}

	return (ctx);
}

static void md5_ctx_free(void *ctx)
{
	mbedtls_md5_free((mbedtls_md5_context *) ctx);
	mbedtls_free(ctx);
}

static void md5_clone_wrap(void *dst, const void *src)
{
	mbedtls_md5_clone((mbedtls_md5_context *) dst, (const mbedtls_md5_context *)src);
}

static void md5_process_wrap(void *ctx, const unsigned char *data)
{
	mbedtls_md5_process((mbedtls_md5_context *) ctx, data);
}

const mbedtls_md_info_t mbedtls_md5_info = {
	MBEDTLS_MD_MD5,
	"MD5",
	16,
	64,
	md5_starts_wrap,
	md5_update_wrap,
	md5_finish_wrap,
	mbedtls_md5,
	md5_ctx_alloc,
	md5_ctx_free,
	md5_clone_wrap,
	md5_process_wrap,
};

#endif							/* MBEDTLS_MD5_C */

#if defined(MBEDTLS_RIPEMD160_C)

static void ripemd160_starts_wrap(void *ctx)
{
	mbedtls_ripemd160_starts((mbedtls_ripemd160_context *) ctx);
}

static void ripemd160_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_ripemd160_update((mbedtls_ripemd160_context *) ctx, input, ilen);
}

static void ripemd160_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_ripemd160_finish((mbedtls_ripemd160_context *) ctx, output);
}

static void *ripemd160_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_ripemd160_context));

	if (ctx != NULL) {
		mbedtls_ripemd160_init((mbedtls_ripemd160_context *) ctx);
	}

	return (ctx);
}

static void ripemd160_ctx_free(void *ctx)
{
	mbedtls_ripemd160_free((mbedtls_ripemd160_context *) ctx);
	mbedtls_free(ctx);
}

static void ripemd160_clone_wrap(void *dst, const void *src)
{
	mbedtls_ripemd160_clone((mbedtls_ripemd160_context *) dst, (const mbedtls_ripemd160_context *)src);
}

static void ripemd160_process_wrap(void *ctx, const unsigned char *data)
{
	mbedtls_ripemd160_process((mbedtls_ripemd160_context *) ctx, data);
}

const mbedtls_md_info_t mbedtls_ripemd160_info = {
	MBEDTLS_MD_RIPEMD160,
	"RIPEMD160",
	20,
	64,
	ripemd160_starts_wrap,
	ripemd160_update_wrap,
	ripemd160_finish_wrap,
	mbedtls_ripemd160,
	ripemd160_ctx_alloc,
	ripemd160_ctx_free,
	ripemd160_clone_wrap,
	ripemd160_process_wrap,
};

#endif							/* MBEDTLS_RIPEMD160_C */

#if defined(MBEDTLS_SHA1_C)

static void sha1_starts_wrap(void *ctx)
{
	mbedtls_sha1_starts((mbedtls_sha1_context *) ctx);
}

static void sha1_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_sha1_update((mbedtls_sha1_context *) ctx, input, ilen);
}

static void sha1_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_sha1_finish((mbedtls_sha1_context *) ctx, output);
}

static void *sha1_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_sha1_context));

	if (ctx != NULL) {
		mbedtls_sha1_init((mbedtls_sha1_context *) ctx);
	}

	return (ctx);
}

static void sha1_clone_wrap(void *dst, const void *src)
{
	mbedtls_sha1_clone((mbedtls_sha1_context *) dst, (const mbedtls_sha1_context *)src);
}

static void sha1_ctx_free(void *ctx)
{
	mbedtls_sha1_free((mbedtls_sha1_context *) ctx);
	mbedtls_free(ctx);
}

static void sha1_process_wrap(void *ctx, const unsigned char *data)
{
	mbedtls_sha1_process((mbedtls_sha1_context *) ctx, data);
}

const mbedtls_md_info_t mbedtls_sha1_info = {
	MBEDTLS_MD_SHA1,
	"SHA1",
	20,
	64,
	sha1_starts_wrap,
	sha1_update_wrap,
	sha1_finish_wrap,
	mbedtls_sha1,
	sha1_ctx_alloc,
	sha1_ctx_free,
	sha1_clone_wrap,
	sha1_process_wrap,
};

#endif							/* MBEDTLS_SHA1_C */

/*
 * Wrappers for generic message digests
 */
#if defined(MBEDTLS_SHA256_C)

static void sha224_starts_wrap(void *ctx)
{
	mbedtls_sha256_starts((mbedtls_sha256_context *) ctx, 1);
}

static void sha224_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_sha256_update((mbedtls_sha256_context *) ctx, input, ilen);
}

static void sha224_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_sha256_finish((mbedtls_sha256_context *) ctx, output);
}

static void sha224_wrap(const unsigned char *input, size_t ilen, unsigned char *output)
{
	mbedtls_sha256(input, ilen, output, 1);
}

static void *sha224_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_sha256_context));

	if (ctx != NULL) {
		mbedtls_sha256_init((mbedtls_sha256_context *) ctx);
	}

	return (ctx);
}

static void sha224_ctx_free(void *ctx)
{
	mbedtls_sha256_free((mbedtls_sha256_context *) ctx);
	mbedtls_free(ctx);
}

static void sha224_clone_wrap(void *dst, const void *src)
{
	mbedtls_sha256_clone((mbedtls_sha256_context *) dst, (const mbedtls_sha256_context *)src);
}

static void sha224_process_wrap(void *ctx, const unsigned char *data)
{
	mbedtls_sha256_process((mbedtls_sha256_context *) ctx, data);
}

const mbedtls_md_info_t mbedtls_sha224_info = {
	MBEDTLS_MD_SHA224,
	"SHA224",
	28,
	64,
	sha224_starts_wrap,
	sha224_update_wrap,
	sha224_finish_wrap,
	sha224_wrap,
	sha224_ctx_alloc,
	sha224_ctx_free,
	sha224_clone_wrap,
	sha224_process_wrap,
};

static void sha256_starts_wrap(void *ctx)
{
	mbedtls_sha256_starts((mbedtls_sha256_context *) ctx, 0);
}

static void sha256_wrap(const unsigned char *input, size_t ilen, unsigned char *output)
{
	mbedtls_sha256(input, ilen, output, 0);
}

const mbedtls_md_info_t mbedtls_sha256_info = {
	MBEDTLS_MD_SHA256,
	"SHA256",
	32,
	64,
	sha256_starts_wrap,
	sha224_update_wrap,
	sha224_finish_wrap,
	sha256_wrap,
	sha224_ctx_alloc,
	sha224_ctx_free,
	sha224_clone_wrap,
	sha224_process_wrap,
};

#endif							/* MBEDTLS_SHA256_C */

#if defined(MBEDTLS_SHA512_C)

static void sha384_starts_wrap(void *ctx)
{
	mbedtls_sha512_starts((mbedtls_sha512_context *) ctx, 1);
}

static void sha384_update_wrap(void *ctx, const unsigned char *input, size_t ilen)
{
	mbedtls_sha512_update((mbedtls_sha512_context *) ctx, input, ilen);
}

static void sha384_finish_wrap(void *ctx, unsigned char *output)
{
	mbedtls_sha512_finish((mbedtls_sha512_context *) ctx, output);
}

static void sha384_wrap(const unsigned char *input, size_t ilen, unsigned char *output)
{
	mbedtls_sha512(input, ilen, output, 1);
}

static void *sha384_ctx_alloc(void)
{
	void *ctx = mbedtls_calloc(1, sizeof(mbedtls_sha512_context));

	if (ctx != NULL) {
		mbedtls_sha512_init((mbedtls_sha512_context *) ctx);
	}

	return (ctx);
}

static void sha384_ctx_free(void *ctx)
{
	mbedtls_sha512_free((mbedtls_sha512_context *) ctx);
	mbedtls_free(ctx);
}

static void sha384_clone_wrap(void *dst, const void *src)
{
	mbedtls_sha512_clone((mbedtls_sha512_context *) dst, (const mbedtls_sha512_context *)src);
}

static void sha384_process_wrap(void *ctx, const unsigned char *data)
{
	mbedtls_sha512_process((mbedtls_sha512_context *) ctx, data);
}

const mbedtls_md_info_t mbedtls_sha384_info = {
	MBEDTLS_MD_SHA384,
	"SHA384",
	48,
	128,
	sha384_starts_wrap,
	sha384_update_wrap,
	sha384_finish_wrap,
	sha384_wrap,
	sha384_ctx_alloc,
	sha384_ctx_free,
	sha384_clone_wrap,
	sha384_process_wrap,
};

static void sha512_starts_wrap(void *ctx)
{
	mbedtls_sha512_starts((mbedtls_sha512_context *) ctx, 0);
}

static void sha512_wrap(const unsigned char *input, size_t ilen, unsigned char *output)
{
	mbedtls_sha512(input, ilen, output, 0);
}

const mbedtls_md_info_t mbedtls_sha512_info = {
	MBEDTLS_MD_SHA512,
	"SHA512",
	64,
	128,
	sha512_starts_wrap,
	sha384_update_wrap,
	sha384_finish_wrap,
	sha512_wrap,
	sha384_ctx_alloc,
	sha384_ctx_free,
	sha384_clone_wrap,
	sha384_process_wrap,
};

#endif							/* MBEDTLS_SHA512_C */

#endif							/* MBEDTLS_MD_C */
